<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
    <title>5_组件实例核心属性</title>

    <style>
    </style>
</head>

<body>

    <div id="main"></div>

    <!-- 引入react核心库 -->
    <script src="./js/react.development.js"></script>
    <!-- 引入react-dom，用于支持react操作DOM -->
    <script src="./js/react-dom.development.js"></script>
    <!-- 引入babel，用于将jsx转为js -->
    <script src="./js/babel.min.js"></script>

    <script type="text/babel">
        class Weather extends React.Component {

            state = { isHot: false, temperature: 20 }

            render() {
                const { isHot } = this.state
                return <button id="h1" onClick={this.changeWeather}>今天天气很{isHot ? '炎热' : '清凉'}</button>
            }

            changeWeather = () => {
                const { isHot } = this.state
                this.setState({
                    isHot: !isHot
                })
                console.log(this.state)
            }
        }

        ReactDOM.render(<Weather />, document.getElementById('main'))

    </script>
</body>

</html>